Inform Bill Strange (8)
I believe the answer is:
acquaint
'inform' is the definition.
(acquainting is a kind of informing)
'bill strange' is the wordplay.
'bill' becomes 'ac'.
'strange' becomes 'quaint' ('quaint' can be similar in meaning to 'strange').
'ac'+'quaint'='ACQUAINT'
(Other definitions for acquaint that I've seen before include "Familiarise" , "Make someone familiar with" , "Get to come to know" , "Make aware or familiar with, say the facts" , "get up to date" .)